Hand with radeon 9000 / AGP / DRI

Hand with radeon 9000 / AGP / DRI

[Karim Yaghmour]

I've been playing around trying to get the most out of my Radeon
9000 pro with a 2.4.x kernel and I must admit that I've been
somewhat disapointed. There are two things I've been trying to get
to work properly:
1) RadeonFB
2) Direct rendering in X (needs DRI and AGP)

The first one actually works, but only if I set "mem=840MB" at
startup (I've got 1GB.) Not sure I see why I need to give up
some memory here. Maybe I'm just missing something ...

The second needs some tweaking before it can start being played
with (http://marc.theaimsgroup.com/?l=linux-kernel&m=107073819005830&w=2).
But even then, it's not really stable. I just go in KDE's screensaver
config menu, select "Flux (GL)"->Setup and try a few different types.
Usually, but the time I've selected to preview a third type (regardless
of the name, it's just any third), the machine simply hangs, and I
have to hard reset. I'm not sure how this propagates down to the kernel
in terms of calls/accesses, but it's really not an issue with time (i.e.
leaving the screensaver run for a while will not cause any hangs,) it's
an issue with changing the screensaver config a limited number of times,
usually three times.

Here's some more info about the config:
- RedHat 9
- P4 2.4GHz with HT
- P4C800-Deluxe Asus board (intel 875 chipset)
- 1GB RAM
- Tried with a 2.4.26 with the above-mentioned patch

Anyone have something like this working?

Karim
-- 
Author, Speaker, Developer, Consultant
Pushing Embedded and Real-Time Linux Systems Beyond the Limits
http://www.opersys.com || karim@opersys.com || 1-866-677-4546

Re: Hand with radeon 9000 / AGP / DRI

[Timothy Miller]

Karim Yaghmour wrote:
> 
> I've been playing around trying to get the most out of my Radeon
> 9000 pro with a 2.4.x kernel and I must admit that I've been
> somewhat disapointed. There are two things I've been trying to get
> to work properly:
> 1) RadeonFB
> 2) Direct rendering in X (needs DRI and AGP)
> 


Which driver are you using for OpenGL?  The x11 (mesa) driver, or ATI's 
driver?  ATI's driver doesn't play nice with radeonfb.

Also, telling radeonfb what resolution you want on the boot command line 
is broken if the res you request and the res reported by EDID disagree.

Re: Hand with radeon 9000 / AGP / DRI

[Karim Yaghmour]

Timothy Miller wrote:
> Which driver are you using for OpenGL?  The x11 (mesa) driver, or ATI's 
> driver?  ATI's driver doesn't play nice with radeonfb.

The X11 one. I used to use ATI's, but it didn't really give me any
advantage over X11 (At least not that I could see.) So it went the way
of "rpm -e".

> Also, telling radeonfb what resolution you want on the boot command line 
> is broken if the res you request and the res reported by EDID disagree.

I'm not giving it any res at all as boot parm.

Karim
-- 
Author, Speaker, Developer, Consultant
Pushing Embedded and Real-Time Linux Systems Beyond the Limits
http://www.opersys.com || karim@opersys.com || 1-866-677-4546